INFORMATION:
Having plants at home improved psychological well-being during lockdown
2021-01-21
(Press-News.org) An international study coordinated by the Research Group for Urban Nature and Biosystems Engineering (NATURIB) from the University of Seville's School of Agricultural Engineering emphasises that having plants at home had a positive influence on the psychological well-being of the dwelling's inhabitants during COVID-19 lockdown. Researchers from the Hellenic Mediterranean University (Greece), the Federal Rural University of Pernambuco (Brazil) and the University of Genoa (Italy) participated in the study along with representatives from the University of Seville.
This study, published in the scientific journal Urban Forestry and Urban Greening, evaluated the role played by plants at home during the first COVID-19 lockdown. The situation between the months of March and June deprived the public of the chance to enjoy open spaces and nature, and forced them to spend extended periods of time indoors.
Its results have confirmed that having plants at home had a positive influence on emotional well-being during lockdown. This was agreed by 74% of the more than 4,200 respondents in 46 countries. In fact, more than half of them (55.8%) stated that they would have preferred to have more plants in their house during that difficult period. The frequency with which study participants experienced negative emotions was higher in those who stated they had no indoor plants. Those living in small or poorly lit dwellings and those who did not visit green spaces frequently before lockdown also experienced more negative emotions.
Moreover, just over half of respondents (52%) reported spending more time on plant care at home during lockdown and almost two thirds (62.5%) expressed a desire to do so once normality was restored. As a result, 40% of the participants indicated that they were motivated to have more plants at home in future.
ELSE PRESS RELEASES FROM THIS DATE:
Mechanism that produces rapid acceleration in clicking beetles identified
2021-01-21
Did you know that fleas, ants, and click beetles are capable of blazingly fast accelerations, with some up to 10^6 meters per square-second? Their quick movements make fast animals like the cheetah look like slowpokes.
A new study by a team that included Jake Socha, professor in biomedical engineering and mechanics in Virginia Tech's College of Engineering, published in the journal Proceedings of the National Academies of Sciences shows that a snap-through unbending movement of the body is the main reason for the clicking beetle's fast acceleration.
Most animals use muscle to move. For example, when we want to bend our elbow, our biceps ...
Natural hazard events and national risk reduction measures unconnected
2021-01-21
Countries where massive natural hazard events occur frequently are not more likely than others to make changes to reduce risks from future disasters. This is shown in an interdisciplinary Uppsala University study now published in Nature Communications.
Natural hazard events, such as storms, floods, and wildfires, entail huge and growing costs all over the world, but they can also be occasions for countries to implement risk-reducing changes. There is no research consensus on whether natural hazard events lead to policy modifications or, instead, contribute to stability and preservation of existing solutions. Knowledge in this area to date has been ...
Memory fail controlled by dopamine circuit, study finds
2021-01-21
JUPITER, FL - In a landmark neurobiology study, scientists from Scripps Research have discovered a memory gating system that employs the neurotransmitter dopamine to direct transient forgetting, a temporary lapse of memory which spontaneously returns.
The study adds a new pin to scientists' evolving map of how learning, memory and active forgetting work, says Scripps Research Neuroscience Professor Ron Davis, PhD.
"This is the first time a mechanism has been discovered for transient memory lapse," Davis says. "There's every reason to believe, because of conservation ...
The idea of an environmental tax is finally gaining strength
2021-01-21
An extra 290,000 pounds a year for lighting and cleaning because smog darkens and pollutes everything: with this cost estimate for the industrial city of Manchester, the English economist Arthur Cecil Pigou once founded the theory of environmental taxation. In the classic "The Economics of Welfare", the first edition of which was published as early as 1920, he proved that by allowing such "externalities" to flow into product prices, the state can maximise welfare. In 2020, exactly 100 years later, the political implementation of Pigou's insight has gained strength, important objections are being invalidated, and carbon pricing appears more efficient than regulations and bans according to a ...
Antarctica: the ocean cools at the surface but warms up at depth
2021-01-21
Scientists from the CNRS, CNES, IRD, Sorbonne Université, l'Université Toulouse III - Paul Sabatier and their Australian colleagues*, with the support of the IPEV, have provided a comprehensive analysis on the evolution of Southern Ocean temperatures over the last 25 years. The research team has concluded that the slight cooling observed at the surface hides a rapid and marked warming of the waters, to a depth of up to 800 metres. The study points to major changes around the polar ice cap where temperatures are increasing by 0.04°C per decade, which could have serious consequences for Antarctic ice. Warm water is also rising rapidly to the surface, at a rate of 39 metres per decade, i.e. between three and ten ...
Novel effector biology research provides insights into devastating citrus greening disease
2021-01-21
Citrus greening disease, also known as Huanglongbing (HLB), is devastating to the citrus industry, causing unprecedented amounts of damage worldwide. There is no known cure. Since the disease's introduction to the United States in the early 2000s, research efforts have increased exponentially. However, there is still a lack of information about the molecular mechanism behind the disease.
"Getting into the molecular details behind what contributes to citrus greening symptom development and disease progression is key to finding sustainable solutions to combat the pathogen," explained plant pathologist Wenbo Ma. "We bring the community one step closer to understanding these mechanisms ...
Feral colonies provide clues for enhancing honey bee tolerance to pathogens
2021-01-21
Understanding the genetic and environmental factors that enable some feral honey bee colonies to tolerate pathogens and survive the winter in the absence of beekeeping management may help lead to breeding stocks that would enhance survival of managed colonies, according to a study led by researchers in Penn State's College of Agricultural Sciences.
Feralization occurs when previously domesticated organisms escape to the wild and establish populations in the absence of human influence, explained lead researcher Chauncy Hinshaw, doctoral candidate in plant pathology and environmental microbiology.
"In the case of honey bees, colonies that escape domestication and establish in the wild provide an opportunity to study how environmental and genetic factors ...
Well-built muscles underlie athletic performance in birds
2021-01-21
Muscle structure and body size predict the athletic performance of Olympic athletes, such as sprinters. The same, it appears, is true of wild seabirds that can commute hundreds of kilometres a day to find food, according to a recent paper by scientists from McGill and Colgate universities published in the Journal of Experimental Biology.
The researchers studied a colony of small gulls, known as black-legged kittiwakes, that breed and nest in an abandoned radar tower on Middleton Island, Alaska. They attached GPS-accelerometers--Fitbit for birds -- ...
As oceans warm, large fish struggle
2021-01-21
Warming ocean waters could reduce the ability of fish, especially large ones, to extract the oxygen they need from their environment. Animals require oxygen to generate energy for movement, growth and reproduction. In a recent paper in the Proceedings of the National Academy of Science, an international team of researchers from McGill, Montana and Radboud universities describe their newly developed model to determine how water temperature, oxygen availability, body size and activity affect metabolic demand for oxygen in fish.
The model is based on physicochemical principles that look at oxygen consumption and diffusion at the gill surface in relation to water temperature and body size. Predictions were compared against actual measurements from over 200 fish species where oxygen ...
Discovery of new praying mantis species from the time of the dinosaurs
2021-01-21
A McGill-led research team has identified a new species of praying mantis thanks to imprints of its fossilized wings. It lived in Labrador, in the Canadian Subarctic around 100 million years ago, during the time of the dinosaurs, in the Late Cretaceous period. The researchers believe that the fossils of the new genus and species, Labradormantis guilbaulti, helps to establish evolutionary relationships between previously known species and advances the scientific understanding of the evolution of the most 'primitive' modern praying mantises. The unusual find, described in a recently published study in Systematic ...